Interestingly, NASA just announced Li-Air batteries are one of its long shot research programs: http://www.nasa.gov/aero/five-new-ideas-to-be-explored-by-nasa-

Interestingly, NASA just announced Li-Air batteries are one of its long shot research programs: http://www.nasa.gov/aero/five-new-ideas-to-be-explored-by-nasa-aeronautics-teams http://www.nasa.gov/aero/five-new-ideas-to-be-explored-by-na...